My M6 sl got formatted accidentally.. then, after copying songs also, i could not play any of 'em. Then I did a firmware upgrade.. (S2003.2_Meizu_En.rar). After this, my player is not coming up. Its hanging in Loading... screen. I am not able to connect to USB also, computer is not detecting it.

one more thing i have observed, after upgrade, its not flasing white screen once while switching on.. it flashes a vertical thin line, then enters into into Loading... page forever.